Engineering menu in Android phones. Login to Engineering Menu Android Thl 4400 Engineering Menu

Often in chinese (yes for sure and not only chinese) phones on android database In the engineering menu there are far from the optimal speaker volume settings, headsets (headphones) and microphone, their correction and consider in this article.

How to get to the engineering menu of the phone based on android

To get into the engineering menu, open the number of the numbers and enter a special code: *#*#3646633#*#*

Also on some android versions may work as a team # 15963 # * and * # * # 4636 # * # *

If your phone's processor is not MTK, then different options are possible.

I will give me codes famous for the opening of the engineering menu on different phones and tablets:

*#*#54298#*#* or *#*#3646633#*#* - Smartphones based on the MTK processor

*#*#8255#*#* or *#*#4636#*#* -Smartphones Samsung

*#*#3424#*#* or *#*#4636#*#* or *#*#8255#*#* - Smartphones HTC.

*#*#7378423#*#* - Sony smartphones

*#*#3646633#*#* - TeXet smartphones, Fly, Alcatel,

*#*#3338613#*#* or *#*#13411#*#* — smartphones Fly, Alcatel, Philips

*#*#2846579#*#* or *#*#2846579159#*#* - Huawei smartphones

*#*#2237332846633#*#* - devices from Acer

Immediately after entering, the command should disappear and open the engineering menu. But on some devices it will still be necessary to press the "Call" key.

A list of sections of the engineering menu of the phone will appear.

Just in case, take a notebook and handle and set the settings that were set on your phone to your intervention. Little, anything happens.

On my phone (based on the MTK processor) to get to the engineering menu I had to install free utility (program) from Google Play. « Mobileuncle MTK Tools."That opens access to the engineering menu (that is, it works similarly to the magic combination set * # 3646633 # * # *).

I am sure that you will find free Apps And for other phones.

Speaker Settings, Headset (Headphones) and Phone Microphone through Engineering Menu

For clarity, we will briefly analyze the adjustment of the volume of the machine:

We go into the program or recruit a magic combination to enter the engineering menu. Next, in the menu that opens, choose the section " Engineer Mode.»

A section will open in which you can select the engineering menu of the Android system (skip it), and the engineering menu of the phone itself.

We need an engineering menu of the phone, so select the "Engineer Mode (MTK) section". This item is encountered in the drawing with a red marker.

A very long menu will open through which you can access almost any phone settings. But not enough to get to them, you need to know how to manage them.

Therefore, do not change what you have no idea.

At the worst, write down the parameters that were before your intervention to return it back. We continue!

Since it is interesting for us to configure the sound level, select the "Audio" item, I covered it with a red marker.

And ... Magic! The settings of the speaker and microphone parameters settings are open.

And actually why we climbed into this menu? Something does not work so from curiosity? Okay, continue to understand!

It is worth lingering and figure out what all these menu items mean.

Normal Mode. (Settings section in normal or normal mode) - such an active mode when nothing is connected to the smartphone;

Headset Mode. (headset mode) - this mode is activated after connecting headphones or external columns;

Loudspeaker Mode. (speaker mode) - it is activated when nothing is connected to the phone or tablet, and you turn on loud communication during the call on the phone;

Headset_loudspeaker Mode. (the loudspeaker mode when the headset is connected) - this mode is activated if you connect headphones or external speakers to the phone or tablet, and you turn on a loud connection while talking on the phone;

Speech Enhancement (Talk mode by phone) - this mode is activated in normal mode of talking by phone, and it is not connected to it (headset, external speakers) and the speakerphone is not enabled.

Debug info - It is not clear for what - information on the backup of information or its debugging;

Speech Logger. - I did not fully understand, most likely, logging during negotiations or recording a conversation. If you put a tick on the "Enable Speech Log", then after the phone call is completed in the root directory of the memory card, appropriate files are created. Their name and structure gets the following form: the day of the week_mets_nity__nd_mintes_sekunds (for example, Friday_yul_2016__Trem17_12_53.pcm).

Why serve these files and how they can come in handy - incomprehensible. The / sdcard / voip_debuginfo directory (which is the storage location with information on the backup) - it is not automatically created if you create it manually, then after the conversation it will remain empty.

Audio Logger. - serves to record sound that supports quick search, reproduction and save it.

When entering any of the modes, you will be available to various volume settings (TYPE). Here is a list of basic settings you need to know:

SIP - settings for Internet calls;
MIC - microphone sensitivity settings;
SPH - Configure speaker settings (that we apply in the ears);
SPH2 - settings of the second conversational speaker (I do not have it in the phone);
SID - we skip, when changing these parameters, during the negotiations on your smartphone or tablet, you can hear yourself instead of the interlocutor;
Media - setting the volume of the multimedia;
Ring - Setting the volume level incoming call;
FMR - FM Radio Volume Settings.

Under the settings item, a list of volume levels (LEVEL) is available (see Figure).

Such levels are usually 7, from Level 0 to Level 6. Each such level corresponds to one click on the volume of the volume of the volume of your smartphone or tablet.

Thus, Level 0 is the most quiet level, and LEVEL 6 is the most loud level of the signal. Please note each level you can assign your values \u200b\u200bthat are in the Value IS 0 ~ 255 cell. They should not go beyond the range from 0 to 255 (the lower the value, the quiet volume).

To change this parameter, you need to erase the old value in the cell and write a new one, and after pressing the "SET" button (that next to the cell) for assignment.

At the end, the MAX VOL section is seen below. 0 ~ 255 (on my smartphone, such as Max Vol. 0 ~ 255, it all depends on the manufacturer). This item sets the maximum volume of the volume level, it is one to all LEVEL.

Dear friends. The name of items may differ on different models. This is the MTK platform, so be prepared that you have to strain the brain and search for compliance in your menu. I have a jiayu g3 phone.

I had changed immediately, but perhaps someone will need to restart the phone so that they come into force.

Although, it seems, you should not break anything and if the changes do not like to always enter the old value ..
But still..
All changes you make at your own risk !!! Do not forget to turn on the thinking!

P.S.:This on the phone discovered the font size setting. It turns out you can still increase!
P.P.S.: If something is still not clear, then here is the video to set the sound in the engineering menu:

AND interesting featureshidden from prying eyes.

Why are they hidden? First, so that the inexperienced user does not break anything, secondly, they are needed in particularly rare cases and are not used regularly. Today we will tell about the engineering menu - a section for programmers, testers, gickers, experienced users and those who want to climb into the most "heart" of the gadget settings.

What is an engineering menu?

This is about special Program or system sectionwhich developers are commonly used at the final configuration stage software platform Mobile device. With it, they contribute last changes The operation of the device, check the functioning of various sensors and test the system components. Also hidden functionality of the service menu is used to obtain a large number of system information, conducting various tests (about 25 pieces) and setting any Android parameters - different sensors, mobile networks, equipment, etc.

Engineering, service or system menu is available on smartphones and tablets operating on the MediaTek processor. On the Qualcomm chipset, it is either trimmed or absent at all.

Attention! This section is designed for experienced users who are fully responsible for the consequences. Careless actions can cause harm file System And bring their smartphone to the smartphone.

How to log in the engineering menu?

To enter the engineering menu, you need to enter the application for dialing special Team: * # * # 4646633 # * # *. Some versions can work the code * # * # 4636 # * # *.

If the engineering menu code on Android did not work, or there is no application for a dialing application (relevant for tablets that do not support calls) will help MobileUncle Tools or MTK Engineering applications that you can download free through Google Play.

After entering the command or start the application, the desired section will open. Perhaps he immediately closes - it is necessary that the "Mode for Developers" can be activated on the smartphone. To do this, go to the gadget settings, find the versa of the kernel there and quickly click on it 5-10 times in a row.

Engineering menu functions

Engineering menu divided into several categories, about each of which we will describe separately.

Telephony (Telephony). Here are all settings concerning mobile communications. For example, you can activate or disable specific Bandmode (frequencies for 2G / 3G / 4G), check the operation of SIM cards and even disable mobile data transmission in the background.
Connectivity: Configure Bluetooth, Radio Receiver, Wi-Fi and Wi-Fi CTIA. For example, in the radio settings, you can specify a radio wave, an antenna type (you need to use headphones) and sound format (mono or stereo). Radio will play straight from this section.
Hardware Testing. In this section, you can configure the operation of various components of the device, simple words, Iron: Headphone and speaker sound levels, microphone sensitivity setting, various camera parameters (color aspect ratio, ISO, HDR adjustment, focusing, and more), the operation of the touchscreen, sensors (calibration right there) and so on. This category is very large and global, in each section you need to understand separately and have serious knowledge and skills.
Location (location). In this category, you can customize the operation of GPS, see how many satellites caught the gadget, and just conduct testing.
Log and Debugging (log and debugging). Logs (magazines) of the battery are underway here (the percentage of charge, voltage, operating time, temperature) and other little-known user functions.
Other (Others). Contains two also unknown to an ordinary user function.

Settings for engineering menu

The engineering menu opens up huge opportunities to customize the phone, the most interesting we look at in detail.

SAR TEST - determining the level of harmful radiation from a smartphone or tablet.
Connections - Testing Available Types wireless connection: Bluetooth, Wi-Fi, WLAN CTIA and FM receiver.

Audio - regulation of sound in speakers, microphone and headphones. How to increase the Android volume through the engineering menu ,.

Camera - setting up different camera settings.

Turning on the current chamber - the camera's operating current indicator is displayed (in our tablet it is 2 mA).
Load test CPU (CPU) - checking the stability of its operation, detect errors in the operation of the channel processor, the test of the cooling and power supply system of the processor.
Device Manager - Activating automatic SMS registration, configuration parameters.
Disable detection - setting the signal frequency.
Display - setting the cycle of the latitude and pulse modulation indicator, which affects the sensitive screen brightness by quickly turning on / off the backlight; setting the backlight; Controller for vertical and horizontal display lines.

Wake-up mode - its activation will not allow the device to "leave" into sleep mode.
IO - management of data I / O operations.
Memory - detailed information About the RAM module.
To the degree - detailed information about the battery (the strange name of the section is likely to be explained by errors with automatic translation of names in the application, but the ability to switch to english absent).
Test SD card - the name of the tab speaks for itself.
The touch screen is to check the sensitivity and reaction of the display when pressed, as well as installing its additional settings.
USB - Testing a USB port.

UART / USB Switch - switch between two data transmission modes.
Sensor - Calibration (Customize and Sensitivity Setting) touchscreen. Standard Methods.
Location - Testing gPS operations and determining accurate location.
Battery log - Battery detailed information and the ability to activate the recording of battery consumption information.

Mtklogger - System Logs Collect (MobileLog, Modemlog and NetworkLog).
Temperature sensor - shows the battery and processor.
The font of the parameter is to resize the font size.

When installing the application, some functions may not be available without.

Xiaomi engineering menu

Despite the fact that our test REDMI 2 works on the Qualcomm Snapdragon 410 processor, it also has the functionality of interest. To come to it, you need to tap the "kernel version" item several times.

The menu is represented by five items:

AUTOMATIC TEST. Automatic test of all device parameters.
Single Item Test. Each of the 25 tests is separated separately. We will tell about it in detail below.
Test Report. Report on the texts and their results passed.
SW Add HW Version. Information about the version of the smartphone, IMEI and other numbers.
Device View. Data on smartphone equipment.

Of course, the most interesting item is Single Item Test, where you can go through a huge number of tests.

Immediately alleged that in the device we tested, there was no possibility to configure something - only the inspection of performance. At the end of each procedure, it is necessary to mark its status: Successful (Success) or not (Failed).

Key - the performance of the physical buttons. Interestingly, it did not work successfully, since when checking the power button, the smartphone goes out.
Backlight - display brightness.

TouchPanel. Test Screen Test includes two procedures: "Crossed Calibration" and "Touch Panel Calibration". The first checks the so-called "swipes", the second is single clicks on the screen. A simple way to calibrate the display.

TFlash. Testing a memory card with two results: either everything is in order or the map is damaged.
Bluetooth. Search for available devices.
SIM card. Test for the presence of SIM cards.

Vibration. Gadget vibrates - everything is OK.
RTC (Real Time Clock) - Functioning of the built-in hours.
SPEAKER. Testing spoken speaker. How to pass it, we did not understand. We will be grateful if you tell me in the comments.
Receiver. Translated as a receiver, recipient, but when testing music plays.
Headset. Checking the 3.5 mm connector on headphone detection, sound playback and headset control buttons.

LED. Notifications indicator, everything is obvious here.
FM (radio). We press the search for the wave (search), and if noise is heard in the headphones, it means everything works fine.
Camera. Everything is obvious: the test of primary and front optics, as well as flashes.
Battery. Informative section with information on the correct operation of the USB cable (charging), the state of the battery, its charge level and temperature. Similar data can be obtained more.

Wi-Fi. Detection of the nearest access points. No settings.

Torch (flashlight): shines / does not shine.
Ring check includes a test microphone test. First, click Recording (recording), then Playing (playback).
LCD. Screen colors.
GPS. Detection of available satellites.
GYRO (Gyroscope). Three parameters - x, y, z - change depending on the position of the device in space.
G-sensor (accelerometer). Screw the gadget in all planes and turn it over. Three parameters must take OK values.
Proximity Sensor (approximation sensor). Usually it is located in a conversational speaker and is intended to have a gadget screen, thereby eliminating random pressing during the conversation.
Optical and Magnetic Sensor (optical and magnetic sensors) - incomprehensible items, share knowledge in the comments.

After passing all the tests, you can go to the Test Report section. As you can see, our "animal" in excellent form and all checks stood, which is very pleased.

conclusions

Above, we listed the main sections of the engineering menu available on the tested devices. Now we generalize what options the user receives when installing:

Formatting, rollback to factory settings.
Testing the work of individual elements of a smartphone or tablet, for example, sensors, sensitivity of the touch display and the accuracy of calibration.
Detailed information about the device and its parts. For example, you can track the battery consumption since the last charging and view the statistics of the programs used.
Optimization of power consumption. Alternatively, unnecessary frequency ranges are disconnected. In Russia, standard indicators for work in 2G and 3G networks are 900 and 1800 MHz, while in the USA - 850 and 1900 MHz.

Probably, many smartphone owners faced the volume of volume. For example, I was not satisfied with two things. The first is the quiet sound of the speaker with an incoming call, and the second is very loud noise In the headphones at the input call.

A little about how Android is listed

If no headset is connected to your gadget (headphones, free hands, etc.), then the volume settings will be alone, and as soon as you connect the headset - the settings will become different. For a general understanding, I will tell you several examples.

Example 1. You listen to music on the phone, included loud speaker At full power, and when you connect the headset to it and turn on the loud speaker again, then the volume may differ (it can be louder or lower, depending on which model phone or firmware version).

Example 2. You are watching the headphones in the headphone volume (meaning the volume of the multimedia) put up by 40% and then after a while you have an incoming call, then the volume in the headphones will change on the overall volume, in which case you can get a powerful sound blow on the ears. Believe me, I have repeatedly undermined from the sofa in such cases, the fact is that the programmers well configured the volume modes.

Example 3. You are talking on the phone and you need to go into speaker mode, and you notice that the speaker is not so loud (or vice versa), as when listening to music; or the partner has become bad to hear you, it is because in different modes The microphone may have different sensitivity. Also, when the headset is connected in the same situation and turn on the speakerphone mode - again other settings. This is how Android is driven by volume.

Know the theory of engineering menu

So let's look at what and how can be done if you have a little piercing over the "engineering menu".

Before you make some changes, we recommend fully reading the article, and comprehend, and then experiment. Also take a piece of paper and write down all the values \u200b\u200bthat stood by default, in case something goes wrong. You can run the engineering menu using telephone set Rooms: We prescribe the following combinations on it (Fig. 1):

picture 1

# * # * # * # * # * # * # * - Smartphones based on MTK processor?

* # * # * # * -Smartphones samsung

# * # * # * # * # * # 8255 # * # * - HTC smartphones

* # * # * - Sony smartphones

# * # * # * - Smartphones Fly, Alcatel, Philips

* # * # * - Huawei smartphones

Congratulations, you got to the engineering menu (Fig. 2). Keep in mind that menu on different phones can differ slightly in structure. We find the section "Audio" and go to it. After entering, we see a bunch of unknown strings (modes) (Fig. 3). Here, what do these modes mean Android:

figure 2 Figure 3

— Normal Mode. (Settings section in normal or normal mode) - such an active mode when nothing is connected to the smartphone;

— Headset Mode. (headset mode) - this mode is activated after connecting headphones or external columns;

— Loudspeaker Mode. (loud mode) - it is activated when nothing is connected to smart, and you turn on a loud connection while talking on the phone;

— Headset_loudspeaker Mode. (the loudspeaker mode when the headset is connected) - this mode is activated when you connect headphones or external speakers to smart, and you turn on a loud connection while talking by phone;

— Speech Enhancement (Talk mode by phone) - this mode is activated in normal mode of talking by phone, and it is not connected to it (headset, external speakers) and the speakerphone is not enabled.

In the last three sections, it is better not to poke the nose:

— Debug info - It is not clear for what - info on the backup of information or its debugging;

— Speech Logger. - I did not understand the end, most likely, logging during negotiations or the record of chatter. If you put a tick on the "Enable Speech Log", then after the phone call is completed in the root directory of the memory card, appropriate files are created. Their name and structure gets the following form: wed_jun_2014__07_02_23.vm (Wednesday_2014__Time07_02_23.vm).

— Audio Logger. - Not bad software for recording sound, which supports quick search, play and save it.

If you approach these modes with the mind, you can adjust the volume of Android smartphones or tablets as you want yourself. When entering any of the modes, various volume settings (Type) will be available. Here is a list of basic settings that you need to know (Fig. 4):

figure 4.

— SIP.- settings for Internet calls;

— MIC- Microphone sensitivity settings;

— Sph - Configure speaker settings (that we apply in the ears);

— SPH2. - Settings of the second conversational speaker (I do not have it);

— SID - We skip, when changing these parameters, during the negotiations on your smartphone or tablet, you can hear yourself instead of the interlocutor;

— Media.- setting the volume of the multimedia;

— Ring - setting the volume of the incoming call;

— FMR. - Volume settings FM radio.

Next, under the selection item, it is available for us a list of volume levels (LEVEL) (Fig. 5). For better understanding - such levels 7, from Level 0 to Level 6. Each level corresponds to one "Click" on the volume of the volume of the volume of the smartphone or tablet. Accordingly, Level 0 is the most quiet level, and Level 6 is the most loud level of the signal. Each level you can assign your values \u200b\u200bthat are in the VALUE IS 0 ~ 255 cell, and should not go beyond the range from 0 to 255 (the lower the value, the lower the sound). To do this, you need to erase the old value in the cell, then enter a new (desired) and press the "SET" button (the one next to the cell) for assignment (Fig. 6). When using maximum values, be careful because the speakers can produce uncharacteristic unpleasant sounds in the form of rattling and other unpleasant effects.

figure 5 Figure 6

A warning! Before change, rewrite all factory values \u200b\u200b(suddenly something goes wrong).

You should know it!

Editing modes in engineering menu

Example 1. How to increase the volume of the incoming call?

To do this, go to the engineering menu, to draw the "Audio" section, go into the "Loudspeaker Mode" mode and select "Ring" in the volume settings - setting the incoming call. Then to change the values \u200b\u200bof all levels of signals to change (LEVEL 0 - LEVEL 6). Also for greater effect, you can increase the value of the MAX Vol. 0 ~ 160, if it is not maximum (I put up - 155, with a greater value, the speaker begins to "hoarse").

Example 2. How to raise the volume when talking on the phone? (Increasing the volume of the loudness of the small dynamics that we apply to the ear).

Again, we go into the already known engineering menu, rub the "Audio" section, go to the special mode "Normal Mode", select SPH in it - this parameter is responsible for changing the value of all signal levels in the interval from Level 0 to Level 6. Install the desired for us level. In the Max Vol. 0 ~ 160, you can also change to a higher volume value.

Example 3. Increase the volume and sensitivity of the spoken microphone of the smartphone

To adjust and set the required volume level as well as the sensitivity of the conversational microphone, you must go to the "Engineering Menu"\u003e "Audio"\u003e "Normal Mode"\u003e Select Mic- Microphone Sensitivity Settings, and for all levels (Level 0 - Level 6) We assign one and Also, the value, for example, 240. Now the interlocutor should hear you better.

Example 4. How to increase the sound recording volume on time video?

Suppose the need to increase the volume of sound recording when video recording, then in the engineering menu for our loudspeaker (Loudspeaker Mode), change the microphone sensitivity settings (MIC), increase all values \u200b\u200bat all levels (Level 0 - Level 6), for example, set 240 at each level. I remind you of clicking on the button (SET) - reboot your favorite gadget and rejoice.

By the way, do not forget to press the "SET" button after each editing of a specific parameter. This action must fix and accept your command. Otherwise, user installed Parameters are not activated. In addition, a certain amount of mobile devices require a reboot to change the changes to take effect (turn off and turn on the device).

Good luck in the experiments, if something is incomprehensible - write in the comments. We are waiting for answers from you.

Table codes for entering the engineering menu

smartphones based on MTK processor	# 4646633 # * # * or * # * # 8612 # * # *
Samsung	* # * # * # * # * Or * # * # * # 8255 # * # *
HTC	# * # * # * # * # * # 8255 # * # *
Huawei.	* # * Or * # * # 14789632 # * # *
Sony	# 4646633 # * # * or * # * # *
Fly, Alcatel, Philips	# * # * Or * # 9646633 #
Prestigio.	* # * # * Or * # * # * # 43781 # * # *
ZTE	##4636##
Philips.	# 1 # 3338613 # 1 # * or * # * # *
TeXet.	##3646633##
Acer.	##2237332846633##
BlackView.	# * # * Or * # 35789 # *
Cube	# * # 4646633 # * # * # * # * # *
Cubot.	##3646633##
Doogee.	# 9646633 # 9646633 # * # * # * # 8612 # * # *
Elephone.	##3646633##,
Homtom.	##3646633##, ##3643366##, ##4636##

Note:the table is constantly updated

For many people, buying a new tablet or smartphone is a real event. Each owner is waiting for the new gadget for many years to delight his reliable work and the lack of problems related to its operation.

Moreover, in this case, it does not matter who is the device collector and which operating system is installed on it. But very often it happens that modern mobile devices are hard to call perfect.

Some time after the start of use, the moments of the owner will certainly want to correct in one way or another. Some are trying to finalize the software part of the mobile assistant to the perfect state. It all depends on what is considered ideal. One of the most accessible tools in mobile operating android system It is an engineering menu.

Engineering menu Android: Secrets settings

At the final stage of configuration of the software shell of a mobile device operating on the basis operating system Android, developers use the so-called Android engineering menu. Under the engineering menu it is understood as an interface of a special program that allows you to make changes to the operation of the device, as well as view information from the sensors and perform technological tests. Hazardous use this element May lead to unpredictable consequences. Most often access to the engineering menu is hidden from users. However, his secret is essentially known to many. To understand how you can call the engineering menu, it is enough just to spend a few minutes on the search for recommendations.

Important moments

Exit to the engineering menu "Android" can be made far from all mobile devicesoh. In order to take advantage of its capabilities, you need to make sure that the gadget corresponds to a number of requirements. Primarily, cPU Devices must be manufactured by MediaTek. On many low-cost Spreadtrum models, popular Snapdragon from Qualcomm and various Tegra Nvidia and Intel are useless to try to run the engineering menu, since it is missing. You will not be able to achieve working capacity even if the appropriate application is provided.

In addition, various modified operating systems, such as using CyanogenMod popular, do not allow to run the configuration program. This is due to the fact that initially these systems were developed for devices with the Qualcomm processor, which do not support the Android engineering menu.

It is also desirable that the operating system would be original or at least created on the base basis. The application file itself must be present among the programs, being hidden from the standard conductor. So, for example, some manufacturers of mobile gadgets after exercise required settings The program part simply delete the Android engineering menu. In this case, recommendations on the use of the engineering menu are useless.

Use secret combinations

To get to the configuration of the engineering menu in the Android operating system, you can use several ways. Which one can not be said, since the direct comparison would be incorrect. Consider alternately each of these methods. One of the oldest options that was used in the "ancient" models of tablets and smartphones is that in a special program - a dialer, the user needed to dial the engineering menu code. The operation was carried out similarly to check the balance on the account. If the device identified and accepted a combination, the setup application is launched. Some mobile device manufacturers use their own modified code. Therefore, the standard set will not work here. In other situations to call the engineering menu, you must dial the following combination of characters "* # * # 36 46 63 # *". That's all.

The usual way

Using secret combination Signs may not be convenient in all cases. The user can just forget right order Following numbers. In the case of a modified set, it will be easier to use the program instead of finding the right order of symbols. One of the most famous applications is Mobile Uncle Tools. This application It applies for free, so the user does not have problems with its search and installation. At the time of writing this article, the current version was 2.9.9 or assembly 3.1.4, which has additional support for new processors.

To work correctly correctly, the user will need to get the rut-right to their gadget. To obtain root-rights, you can use various applications, for example, SuperSU or Kingroot. In this article, it will not be about the features of working with a rutted device, since this is a separate enough bulk topic. When the application is running, you will need to select the third item called the ENGINEER MODE. Next, in the window that opens, you need to choose "work with MTC". When the question of providing root access is to confirm the operation.

Restore access to engineering regime

In the event that the mobile device manufacturer decided to prudently delete the configuration program to ensure the safety of the operating system, it will be possible to install it again. To do this, the user will need to find the installer on the Internet, which restores engineermode.apk. When you find this component, you will only need to install it. Because of the abundance of clones-analogs, we will not specify the exact name. You can simply copy specified file In the system folder (System \\ APP). After performing these operations, you can use to access the engineering menu of any of the ways: you can dial the number or call the menu directly from the program interface. It is worth noting that to perform this operation, the user will need root rights.

Miracle program and its capabilities

Configuring Android through the engineering menu opens over the user the ability to solve several most important tasks at once. In particular, it is possible to adjust the sensitivity of the microphone and the speaker volume, reduce the level of power consumption, limit the scanning of unnecessary ranges and reduce the satellite search time. Let us focus in more detail on the above functions.

How to raise the volume?

The volume of the call with the help of the engineering menu rises quite simply. To do this, select the section "Audio". You will display a list of available modes. The system speaker in the system is replied by the Ring section of the Loudspeaker Mode section. Do not change the value of the parameter in the first window. In the second window, you can put a higher parameter value. After editing is completed, click the SET button, which is here. Next, you need to restart the device, while correctly coming out of the program.

Frequencies operators

To optimize the power consumption level of the mobile device, you can try to disable the scanning function of unnecessary frequency ranges. Standard frequencies when working in 2G and 3G networks in our country are 900 and 1800 MHz. A pair of 850 and 1900 MHz is responsible for the American standard. To enable or disable the range unnecessary to you, you need to use the Band Mode of the Engineering Menu. Here you must alternately go to the settings for both SIMs and put the ticks opposite the desired items. Pressing the SET button serves as a confirmation.

How to improve GPS?

To improve the operation of the global positioning system, you must select Location in the Android engineering menu. Next, use the Location Based Service item and open the EPO. Here you need to make sure that there are checkmarks at download and enabled. Then you need to return to the YGPA point, select the information section and click alternately "Full" - "Cold" - "Restart". Then you need to select Satelites or Satellites. While the answer will not be recorded on the map. The whole procedure will take from 2 to 5 minutes. You will only have to get out of the engineering menu, close the program and restart the device.

Surely not many users of OS Android devices, it is known that there are so-called engineering (service) codes, which, by the way, have appeared much earlier than the release of the first version of the Android OS. This set of special symbols by developers was named "Engineering Menu", which manipulated is recommended only to those skilled in the art, but, nevertheless, simple users of this kind will be clearly not careful and probably useful.

The main purpose of this system is the work with her specialists service centers for repair and more thin setting Mobile devices. Therefore, you, after reading this material, and learning the combination of characters to enter one or another block of the engineering menu, decrease to experiment with your own apparatus, without having sufficient knowledge and training, should be a report that all responsibility for the consequences will lie only on you.

What can be changed in engineering menu

Now we will tell you what can be done with the use of a particular engineering code:

Engineering codes and their functions:

Find out the IMEI identifier - *#06#
Settings and information - *#*#4636#*#*
Android firmware, version - *#2222#
Delete all SMS - #*5376#
Obtaining information about the phone (use statistics) and battery - *#*#4636#*#*
Reset account Google accounts of the owner of the phone and other system utilities without removing the pre-installed software with the preservation of programs on the memory card (SD) - *#*#7780#*#* (A request for confirmation of the action will appear before resetting the settings, so you still have a chance to change your mind).
Execution of factory formatting - deleting absolutely all settings and files, including stored in internal memory, and reinstall the smartphone firmware - *2767*3855# (Introduction of the code of chances to meditation does not give, it is possible only to quickly extract the battery and the recovery of data through the PC)
Chamber Information - *#*#34971539#*#* Work is available here in the following parameters:

- update the phone firmware in the image,

- Obtaining firmware version,

- information about quantity firmware updates,

- Updating camera firmware on the Es-di card.

Important! You never need to use the first option to avoid full camera failure.

Changing the "Ottop" button modes (ONVL.) - *#*#7594#*#* By default, a long press of the button shows the switching options on the screen to the modes: silent, flying or shutting down the smartphone. Here you can perform automatic shutdown phone without choosing options.
Opening File Copy Screen - *#*#273283*255*663 282*#*#* Here it is possible to get backups own data (photos, audio, etc.).
Log in to service mode (launch of various tests (by pressing the "MENU" button), change the settings in service mode) - *#*#197328640#*#*

Factory test codes:

Mac address Wi-Fi - *#*#232338#*#*
WLAN - *#*#232339#*#*
Test Ji Pi-Es - *#*#1472365#*#* or *#*#1575#*#*
Bluetooth - *#*#232331#*#*
Bluetooth address - *#*#232337#*#
Batch tests LOOPBACK - *#*#0283#*#*
Touchscreen version - *#*#2663#*#* (test *#*#2664#*#* )
Motion Sensor Test - *#*#0588#*#*
LCD test - *#*#0*#*#*
Vibration and backlight - *#*#0842#*#*
Melody test - *#*#0673#*#*
RAM version - *#*#3264#*#*

We only gave information about the basic codes for Android, deciding some problems in the work of the device and therefore can be interesting to advanced users. But, nevertheless, we will recall again: do not enter a single code if you do not know what they are intended for!

For entry Engineering Menu, you need instead telephone number Enter a certain combination of characters other than different manufacturers in the dialer:

For "samsung" - *#*#8255#*#* or *#*#4636#*#*
Smartphones based on MTK processors - *#*#3646633#*#* (possibly *#*#54298#*#* )
"HTC" - *#*#8255#*#* or *#*#3424#*#*
"Sony" - *#*#7378423#*#*
Huawei - *#*#2846579159#*#* or *#*#2846579#*#*
Fly, Philips, Alkatel - *#*#3646633#*#*

Immediately after entering the engineering menu should open. In case of non-displacement, you can try to click the call button.

To start the engineering menu on smartphones with a MTC processor, there is a special application that can be used if the service does not open through the "dialer".

In fact, as can be seen from the material, service menu Opens tremendous opportunities for setting up or troubleshooting in the apparatus, but it is still not to use to avoid to avoid "andrew" of their "Andryuhi". Consider this remark if your handhelds have been brought to urgently enter the cherished code.